石灰石粉體氣力輸送機的注意事項：

石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)氣力輸送(song)(song)系(xi)統(tong)(tong)也是(shi)循環流化床鍋爐的重(zhong)要輔(fu)助系(xi)統(tong)(tong)。以往項目中(zhong)(zhong)常用的輸送(song)(song)系(xi)統(tong)(tong)。石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)從石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)儲(chu)料(liao)(liao)(liao)倉輸送(song)(song)到(dao)石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)中(zhong)(zhong)間料(liao)(liao)(liao)倉，再從石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)中(zhong)(zhong)間料(liao)(liao)(liao)倉輸送(song)(song)到(dao)日用料(liao)(liao)(liao)倉，然(ran)后脫硫劑由石(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)輸送(song)(song)風機從日用料(liao)(liao)(liao)倉輸送(song)(song)到(dao)爐膛(tang)。

氣力輸送機輸送石灰石粉時應注意以(yi)下幾點:

1)由于石灰石粉的(de)堆積(ji)密度(du)大于粉煤灰的(de)堆積(ji)密度(du)，根據(ju)經驗建(jian)議采用向下流化倉泵(beng)或(huo)噴射泵(beng)。

2)石(shi)灰石(shi)粉在冷(leng)態下易受潮(chao)(chao)，設計時要注意防潮(chao)(chao)措施，儲料斗要保溫，粉倉底部要通(tong)熱風，防止受潮(chao)(chao)結塊。

3)石灰石粉顆粒(li)分(fen)布分(fen)散性大(da)，大(da)粒(li)徑在2mm左(zuo)右，小(xiao)粒(li)徑小(xiao)于50tan，懸浮速度梯度大(da)，給輸送管道(dao)風(feng)速的選擇帶來困難，甚至造成管道(dao)堵塞。

4)空(kong)氣(qi)凈化要求高，建議使用螺桿式空(kong)壓機，配備冷凍干燥機和空(kong)氣(qi)過濾器，提高輸送空(kong)氣(qi)質量。

5)應充分考(kao)慮(lv)石灰(hui)石粉氣力(li)輸送的難度，設計(ji)輸送速(su)度、混合濃度比、耗氣量、產量等(deng)。必須保留(liu)或(huo)適(shi)當增加。

TAGS：粉體氣力輸送機  氣力輸送機  料封泵  

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